Nine cows have been cloned with the ability to produce genetically altered milk. The milk contains cheese proteins.
The team from AgResearch in Hamilton, in New Zealand, was led by Gotz Laible. They produced cows whose milk contains extra high levels of caseins. This would allow cheese to made more quickly.
The journal Nature Biotechnology quotes: "When projected on to the production scale of the dairy industry, the increases observed in our study represent large changes that would translate into substantial economic gains."